Effect of sample disturbance on strength properties of clay measured by precision triaxial compression apparatus

Abstract

A precision triaxial compression apparatus using small size specimens was newly developed, and the strength properties of undisturbed Mito clay and its remolded clay are examined through CK₀CU and CK₀EU tests using this apparatus. The precision triaxial compression apparatus was able to evaluate the coefficient of earth pressure at rest (K₀) and the strength properties of triaxial compression and extension. The effect of sample disturbance on K₀, effective stress path and rate of strength increase were small in the normal consolidation region.